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sunoco 110 leaded

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Im sorry I know there has probably been a thousand threads on this but I got a free barrel of sunoco 110 leaded race fuel. I have an 06 KtM 560 with a compression ratio of 11:1. Will this run through alright? Or will I have to change jetting or mix with pump gas any help would be great thank you.

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Assuming the gas is not real old it will be ok. You will suffer some power loss due to the high octane however. Diluting it with regular may not be a bad idea. (1 gal. of each).

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I had posted something similar a couple weeks ago. Heres what I was told

It might, and unless your local pump gas is 10% or more ethanol, it won't do much positive, either.

In the first place, you don't need 100 octane, so you will get nothing from that. Anything more that you spend to get more than a pump grade of 91 (91AKI, 95 Research, or ~87 Motor Octane) is a pure waste of money because a pump 91 will prevent detonation, and that's all the octane number does.

The lead will not help, either, and can actually damage engines intended to run on unleaded fuels if it's allowed to build up in carbon deposits.

AvGas of any kind will also have an incorrect vaporization rate generally unsuited to extremely high rpm engines with very short intake tracts operated at low altitudes in high temperatures (in aircraft terms that would be below 6000 feet and above 50 degrees Fahrenheit). The fuel chemistry is almost certain to be a higher quality, than emissions automotive pump fuels, so some good may come of it overall. If, as I already mentioned, your local pump gas is basically junk, than it may be worthwhile, depending on what it costs. But it will not be an ideal fuel.

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I've heard the leaded race fuels are great in two strokes, but not so great in fours, especially fuel injected motors. Havn't looked into it much, just what someone has told me.

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I've heard the leaded race fuels are great in two strokes, but not so great in fours, especially fuel injected motors. Havn't looked into it much, just what someone has told me.

Lead was/is an easy/cheap way to raise octane. Not too many unleaded high octane race gasses out there to support real high comp in 2-strokes. Where lead becomes an issue is if the engine has a catalytic converter like cars and some streetbikes, it can also leave deposits on O2 sensors and give false readings when en EFI system goes closed loop. No dirtbikes with cats and AFAIK, none of the EFI MX bikes are running closed loop with an O2 in the exhaust. A few of the dual sport bikes might be running closed loop, but I know with the Husky TE line, if you put the power up kit in, it switches to open loop and disables the O2 sensor.

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